To address societal concerns over rising sea level and extreme events, understanding the contributions behind these changes is key to predict potential impacts of sea level change on coastal communities and global economy, and is recognized as one of the Grand Challenges of our time by the World Climate Research Programme (WCRP). To continue this discussion, we welcome contributions from the international sea level community that improve our knowledge of the past and present changes in sea level, extreme events, and flooding, and produce improved predictions of their future changes. We welcome studies on various drivers of sea level change and linkages between variability in sea level, heat and freshwater content, ocean dynamics, land subsidence from natural versus anthropogenic influences, and mass exchange between the land and the ocean associated with ice sheet and glacier mass loss and changes in the terrestrial water storage. Studies focusing on future sea level changes are also encouraged, as well as those discussing potential short-, medium-, and long-term impacts on coastal and deltaic environments, as well as the global oceans.
This session on “Sea level rise” has received 30 contributions from different and exciting topics. The session is split into two time slots. During the first part authors will discuss about past long-term sea level changes at both local (e.g. Singapore, West Africa, Mediterranean) and global scales and for time scales from Holocene to the Last Interglacial. Sea level proxies, marine terraces and archaeological indicators will be used to describe past relative sea level changes and processes such as Glacial Isostatic Adjustment
The second part of the "Sea level rise" session focuses on the present and future of sea level changes. This session will begin with presentations on internal sea level variability-related issues, on the closure of sea level budget, and on regional sea level change studies (Mediterranean basin, Svalbard Islands, west coast of Australia, Finnish Coast). Then, the session will focus specifically on sea level rise projections provided by climate models (e.g. CMIP6) and on their uncertainties at global and regional scale (South Africa, Western European coasts).
We have two solicited talks: in the first one, Dr Tim Shaw will provide an overview of sea level changes in Singapore, since the early Holocene up to 21st century projections. In the second one, Dr Sam Royston will address the impact of large-scale climate modes on coastal sea level variability.
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